evolution outline

Evolution:
---------occurs over time
---------requires variation (through mutations)
---------that persist through selection (for favorable traits) to be...
---------inherited by the next generation
.....the world is still evolving because topography and climates are changing and life will always have a new mutation that that is selected for and passed on to the next generation...therefore, let's start at the very beginning because it's a very good place to start.
I. Origins of Life on Earth

• radiometric dating (elemental evidence)
• endosymbiosis

II. Charles Darwin

• descent with modification
• natural selection

III. Evidence of Evolution

• fossil records
• homologous, analogous, and vestigial structures

IV. Evolution at work

• convergent
• divergent
• coevolution

V. Genetic variations (mutations)

• within populations promotes
• alterations of the Hardy-Weinburg genetic equilibrium can lead
• (back to natural selection) to stabilizing, disruptive, of directional selection

VI. Origin of Species

• Isolation:
  • geographic and reproductive
• Speciation:
  • allopatric and sympatric (also gradual or punctuated)

VII. Classification of Species

• Evidence of shared ancestry
• Taxonomy- 3 domains, 6 kingdoms

Evolution Home